Decoherence in the cosmic background radiation
In this paper, we analyze the possibility of detecting nontrivial quantum phenomena in observations of the temperature anisotropy of the cosmic background radiation (CBR), for example, if the Universe could be found in a coherent superposition of two states corresponding to different CBR temperature...
Guardado en:
| Autores principales: | , |
|---|---|
| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_02649381_v28_n14_p_Franco |
| Aporte de: |
| id |
todo:paper_02649381_v28_n14_p_Franco |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_02649381_v28_n14_p_Franco2023-10-03T15:13:16Z Decoherence in the cosmic background radiation Franco, M. Calzetta, E. In this paper, we analyze the possibility of detecting nontrivial quantum phenomena in observations of the temperature anisotropy of the cosmic background radiation (CBR), for example, if the Universe could be found in a coherent superposition of two states corresponding to different CBR temperatures. Such observations are sensitive to scalar primordial fluctuations but insensitive to tensor fluctuations, which are therefore converted into an environment for the former. Even for a free inflaton field minimally coupled to gravity, scalar-tensor interactions induce enough decoherence among histories of the scalar fluctuations as to render them classical under any realistic probe of their amplitudes. © 2011 IOP Publishing Ltd. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02649381_v28_n14_p_Franco |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
In this paper, we analyze the possibility of detecting nontrivial quantum phenomena in observations of the temperature anisotropy of the cosmic background radiation (CBR), for example, if the Universe could be found in a coherent superposition of two states corresponding to different CBR temperatures. Such observations are sensitive to scalar primordial fluctuations but insensitive to tensor fluctuations, which are therefore converted into an environment for the former. Even for a free inflaton field minimally coupled to gravity, scalar-tensor interactions induce enough decoherence among histories of the scalar fluctuations as to render them classical under any realistic probe of their amplitudes. © 2011 IOP Publishing Ltd. |
| format |
JOUR |
| author |
Franco, M. Calzetta, E. |
| spellingShingle |
Franco, M. Calzetta, E. Decoherence in the cosmic background radiation |
| author_facet |
Franco, M. Calzetta, E. |
| author_sort |
Franco, M. |
| title |
Decoherence in the cosmic background radiation |
| title_short |
Decoherence in the cosmic background radiation |
| title_full |
Decoherence in the cosmic background radiation |
| title_fullStr |
Decoherence in the cosmic background radiation |
| title_full_unstemmed |
Decoherence in the cosmic background radiation |
| title_sort |
decoherence in the cosmic background radiation |
| url |
http://hdl.handle.net/20.500.12110/paper_02649381_v28_n14_p_Franco |
| work_keys_str_mv |
AT francom decoherenceinthecosmicbackgroundradiation AT calzettae decoherenceinthecosmicbackgroundradiation |
| _version_ |
1807320391793770496 |